[groovy] 05/05: Trivial tweak: support cleaning java stubs in parallel

[su...@apache.org]

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sunlan pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/groovy.git

commit d0f20b54194211601ddf2f7dbeb6b70ae609d78a
Author: Daniel Sun <su...@apache.org>
AuthorDate: Thu Jul 9 14:53:57 2020 +0800

    Trivial tweak: support cleaning java stubs in parallel
---
 .../java/org/codehaus/groovy/tools/javac/JavaStubGenerator.java   | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/codehaus/groovy/tools/javac/JavaStubGenerator.java b/src/main/java/org/codehaus/groovy/tools/javac/JavaStubGenerator.java
index 6e32363..ccce303 100644
--- a/src/main/java/org/codehaus/groovy/tools/javac/JavaStubGenerator.java
+++ b/src/main/java/org/codehaus/groovy/tools/javac/JavaStubGenerator.java
@@ -74,6 +74,7 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.stream.Stream;
 
 import static org.apache.groovy.ast.tools.ConstructorNodeUtils.getFirstIfSpecialConstructorCall;
 import static org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpec;
@@ -1035,7 +1036,12 @@ public class JavaStubGenerator {
     }
 
     public void clean() {
-        javaStubCompilationUnitSet.stream().forEach(FileObject::delete);
+        Stream<JavaFileObject> javaFileObjectStream =
+                javaStubCompilationUnitSet.size() < 2
+                        ? javaStubCompilationUnitSet.stream()
+                        : javaStubCompilationUnitSet.parallelStream();
+
+        javaFileObjectStream.forEach(FileObject::delete);
         javaStubCompilationUnitSet.clear();
     }